Metal powder packaging equipment

Abstract

The present invention relates to the technical field of metal powder packaging, and specifically discloses a metal powder packaging device, including a material tank and a filling tube located at the bottom of the material tank, a mounting plate is provided at the bottom of the material tank, a driving assembly and an auxiliary frame are provided below the mounting plate; a sealing sleeve connecting the auxiliary frame and the filling tube is provided between the auxiliary frame and the filling tube, the auxiliary frame includes a plurality of auxiliary plates rotatably connected to each other, the driving assembly is connected to the diagonal parts of the auxiliary frame to control the folding and unfolding of the auxiliary frame, the auxiliary plate includes a telescopic part for adjusting its length, an adjusting assembly and a ventilation assembly are provided on the auxiliary plate, the adjusting assembly is connected to the telescopic part to control the extension and retraction of the auxiliary plate, the ventilation assembly includes an exhaust pipe and a ventilation pipe connected to the inside of the packaging bag; the metal powder packaging device of the present invention has the effect of improving packaging efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of metal powder packaging, and in particular to a metal powder packaging device. Background Art

[0002] Metal powders such as titanium and aluminum alloys are used in additive manufacturing to produce complex structures such as aerospace components and biomedical implants, combining lightweight and high-strength properties. However, metal powders oxidize when exposed to oxygen in the air. Furthermore, in dry environments, contact with air during the filling process increases flow friction and can easily generate static sparks. This poses a safety hazard and affects subsequent use, so packaging requires vacuum conditions.

[0003] Patent document CN118205787A discloses a production device for packaging metal alloy powder. The device comprises a filling box, a packaging can for containing the metal alloy powder, and a filling assembly for conveying the metal alloy powder into the packaging can. The filling box is also connected to a gas supply for conveying a specified gas. A detection module for detecting the concentration of the specified gas within the filling box is also located within the filling box. The detection module is electrically connected to a controller. A gas outlet pipe is also connected to the side wall of the filling box. A first valve is disposed on the gas outlet pipe. Both the gas supply and the first valve are controlled by the controller. The controller controls the opening and closing of the first valve and the gas supply based on the detection results of the detection module. During filling, the specified gas is conveyed into the filling box through the gas supply, while the gas is simultaneously discharged through the gas outlet pipe. After the gas composition within the filling box is changed, the metal powder is then filled into the packaging can.

[0004] However, this solution also presents the following issues: After the cans are transported to the filling box, the air composition inside the filling box is adjusted by introducing new gas through the air supply component and simultaneously exhausting the existing gas through the exhaust pipe. However, due to the uncontrollable nature of the gas, complete exhaustion of the existing gas cannot be guaranteed. In addition, the gas introduced by the air supply component will mix with the existing gas in the filling box, making it difficult to completely expel the existing gas in the filling box. New gas must be continuously introduced to dilute the concentration of the existing gas in the filling box, a cumbersome process that affects packaging efficiency. Summary of the Invention

[0005] The present invention provides a metal powder packaging device, which aims to solve the problem in the related art that the efficiency of regulating the composition of the gas in the filling box is low, which affects the packaging efficiency.

[0006] The metal powder packaging equipment of the present invention includes a material tank and a filling tube located at the bottom of the material tank. A mounting plate is provided at the bottom of the material tank, and a driving assembly and an auxiliary frame are provided below the mounting plate; a sealing sleeve connecting the auxiliary frame and the filling tube is provided between the auxiliary frame and the filling tube, and the auxiliary frame includes a plurality of auxiliary plates rotatably connected to each other, and the driving assembly is connected to the diagonal parts of the auxiliary frame to control the folding and unfolding of the auxiliary frame, and the auxiliary plate includes a telescopic part for adjusting its length, and an adjusting assembly and a ventilation assembly are provided on the auxiliary plate, and the adjusting assembly is connected to the telescopic part to control the extension and retraction of the auxiliary plate, and the ventilation assembly includes an exhaust pipe and a ventilation pipe connected to the interior of the packaging bag; the packaging bag is put on the outside of the folded auxiliary frame, and the adjusting assembly controls the extension of the auxiliary plate so that the outer side of the auxiliary frame is close to the inside of the packaging bag to fix the packaging bag. After the exhaust pipe extracts the air in the packaging bag, the ventilation pipe introduces inert gas into the packaging bag, and then the driving assembly controls the expansion of the auxiliary frame, and finally the filling tube performs filling.

[0007] The effect is that in the initial state, the auxiliary frame is in a retracted state, the telescopic part is contracted, and the auxiliary plate is also in a retracted state. The packaging bag is then placed on the outside of the auxiliary frame, and the adjustment component drives the telescopic part to extend, causing the auxiliary plate to extend. As the auxiliary plate extends, the opening of the packaging bag is propped up until the outside of the auxiliary plate abuts against the inside of the packaging bag. The original gas in the packaging bag is then extracted through the exhaust pipe, and then inert gas is introduced into the packaging bag through the ventilation pipe. Subsequently, the driving component drives the auxiliary frame to open, and then the filling pipe moves down into the packaging bag to fill the metal powder into the packaging bag. During the process of exhaust and ventilation, the auxiliary frame remains in a retracted state to facilitate exhaust and inflation, thereby improving the efficiency of gas replacement in the packaging bag and thus improving packaging efficiency.

[0008] Preferably, the two diagonal corners of the auxiliary frame are the adjustment position and the sliding position respectively. The driving assembly includes a driving member and a connecting plate arranged at the output end of the driving member. The connecting plate is connected to the adjustment position of the auxiliary frame. A slider is provided on the sliding position of the auxiliary frame. The slider slides on the mounting plate in a direction perpendicular to the filling tube.

[0009] The effect is that the driving member drives the connecting plate to move, thereby driving the two adjustment positions on the auxiliary frame to move away from each other, thereby unfolding the auxiliary frame.

[0010] Preferably, the auxiliary plate includes connecting parts arranged at both ends of the telescopic part, and the auxiliary plate is rotatably connected to the adjacent auxiliary plate through the connecting parts. The adjustment assembly includes an adjusting tube and an elastic member. The elastic member is arranged in the telescopic part and connected to the connecting parts at both ends of the telescopic part to drive the telescopic part to be retracted. The adjusting tube is arranged on the connecting part, one end of the adjusting tube is connected to the air pump, and the other end passes through the connecting part and is connected to the inside of the telescopic part. When the adjusting tube is inflated, the telescopic part is expanded under the action of positive pressure.

[0011] The effect is that the elastic member drives the two connecting parts closer together, so that the auxiliary plate is in a retracted state, and air is ventilated into the telescopic part through the ventilation pipe, and the telescopic part extends under a positive pressure state, thereby driving the auxiliary plate to open.

[0012] Preferably, both inner and outer sides of the auxiliary plate are provided with rubber layers. When the auxiliary frame is in the retracted state, the rubber layers on the inner sides of the auxiliary plate abut against each other to close the interior of the auxiliary frame. When the auxiliary plate is extended, the rubber layers on the outer sides abut against the inner side of the packaging bag.

[0013] The effect is that when the auxiliary frame is folded, the rubber layers on the inner sides of the auxiliary plates abut against each other, thereby improving the sealing of the auxiliary frame when folded. At the same time, when the auxiliary frame is unfolded, the rubber layers on the outer sides of the auxiliary plates abut against the inner side of the packaging bag, thereby improving the sealing of the auxiliary frame and the packaging bag when they are matched.

[0014] Preferably, a connecting ring is mounted on the outside of the filling tube for sliding up and down, and the sealing sleeve is connected to the connecting ring.

[0015] The effect is that the filling tube can move up and down in the connecting ring, and the sealing sleeve can be prevented from interfering with the movement of the filling tube.

[0016] Preferably, a heat sealing assembly is provided on the mounting plate, and two groups of heat sealing assemblies are provided around the filling tube. The heat sealing assembly includes a pusher 1 and a heat sealing plate. The heat sealing plate is provided at the output end of the pusher 1. The two groups of heat sealing plates are provided in parallel and spaced apart. The heat sealing plate is provided below the auxiliary frame for heat sealing the packaging bag.

[0017] The effect is that after filling is completed, the pusher drives the heat sealing plate to move, and the packaging bag is clamped by two sets of heat sealing plates to seal the packaging bag.

[0018] Preferably, a bag feeding assembly is provided below the auxiliary frame, and two groups of bag feeding assemblies are provided. The bag feeding assembly includes a pusher 2, a connecting plate, and a suction nozzle. The output end of the pusher 2 is connected to the connecting plate. The connecting plates in the two groups of bag feeding assemblies are arranged parallel to each other. The suction nozzle is arranged on the connecting plate and is located between the two connecting plates.

[0019] The effect is that after the suction nozzle is adsorbed on both sides of the packaging bag, the pusher 2 drives the two connecting plates to move away from each other, opening the opening of the packaging bag so that the packaging bag can be placed outside the auxiliary frame.

[0020] Preferably, a plurality of suction nozzles are arranged at intervals along the length direction of the connecting plate.

[0021] The effect is to improve the stability of the packaging bag after it is opened.

[0022] Preferably, a push piece 3 is provided below the push piece 2, and the output end of the push piece 3 is connected to the push piece 2 to drive the push piece 2 to move up and down. The push piece 2 moves upward to drive the opening of the packaging bag to be sleeved outside the auxiliary frame through the suction nozzle.

[0023] The effect is that after the packaging bag is opened, the push member 3 drives the push member 2 to move upward, so that the opening of the packaging bag is sleeved on the outside of the auxiliary frame.

[0024] Preferably, a slide plate is provided below the push member 3, and the slide plate is slidably assembled below the auxiliary frame to transport the packaging bag to the auxiliary frame.

[0025] The effect is that after the packaging bag is placed on the suction nozzle, the slide plate is moved to the auxiliary frame for subsequent operations.

[0026] Beneficial effects: The present invention provides an auxiliary frame, which can be extended to prop up the packaging bag in the folded state, and then the gas in the packaging bag is extracted, and then inert gas is introduced into the packaging bag through the ventilation tube. Finally, the auxiliary frame is unfolded, and the filling tube is extended into the packaging bag for filling. This can realize rapid replacement of the gas in the packaging bag and improve packaging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is the main view of the metal powder packaging equipment.

[0028] Figure 2 It is a structural diagram of the driving component and the bag feeding component.

[0029] Figure 3 for Figure 2 Cross-sectional view of section AA.

[0030] Figure 4 It is a three-dimensional diagram of the auxiliary frame and heat sealing assembly.

[0031] Figure 5 This is a schematic diagram of the auxiliary frame when it is expanded.

[0032] Figure 6 This is a cross-sectional view of the auxiliary plate.

[0033] Figure 7 It is a three-dimensional diagram of the bag feeding assembly and the pushing component three.

[0034] Reference numerals:

[0035] 1. Frame; 11. Bag feeding assembly; 111. Pusher 2; 112. Connecting plate; 113. Suction nozzle; 12. Pusher 3; 13. Slide plate; 2. Material tank; 3. Filling tube; 31. Connecting ring; 4. Mounting plate; 41. Heat sealing assembly; 411. Pusher 1; 412. Heat sealing plate; 5. Driving assembly; 51. Driving member; 52. Connecting plate; 6. Auxiliary frame; 61. Auxiliary plate; 611. Telescopic part; 612. Connecting part; 613. Adjusting position; 614. Sliding position; 615. Slider; 7. Sealing sleeve; 8. Adjusting assembly; 81. Adjusting tube; 82. Elastic part; 9. Ventilation assembly; 91. Exhaust pipe; 92. Ventilation pipe. DETAILED DESCRIPTION

[0036] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0037] like Figures 1 to 7 As shown, the metal powder packaging equipment of the present invention includes a frame 1, a filling assembly, an auxiliary assembly, a drive assembly 5, an adjustment assembly 8, a ventilation assembly 9, and a bag delivery assembly 11. The filling assembly is mounted on the frame 1, the drive assembly 5 and the adjustment assembly 8 are both connected to the auxiliary assembly, the ventilation assembly 9 is mounted on the auxiliary assembly, and the bag delivery assembly 11 is used to transfer the packaging bag to the auxiliary assembly. Under the action of the drive assembly 5 and the adjustment assembly 8, the auxiliary assembly props up the opening of the packaging bag. The ventilation assembly 9 then ventilates the bag, replacing the air composition within the bag. Finally, the metal powder is filled into the bag by the filling assembly.

[0038] Reference Figure 1 The filling assembly includes a material tank 2 and a filling tube 3. The material tank 2 is mounted on the frame 1. The filling tube 3 is mounted at the bottom of the material tank 2 and slides up and down on the material tank 2. The auxiliary assembly is located near the lower end of the filling tube 3. The metal powder raw material is placed in the material tank 2. During filling, the filling tube 3 moves downward so that its lower end extends into the packaging bag to fill the metal powder.

[0039] Reference Figure 2 、 Figure 3 、 Figure 4 The auxiliary components include: a mounting plate 4, an auxiliary frame 6, and a sealing sleeve 7. The mounting plate 4 is set on the frame 1 and assembled at the bottom of the material tank 2. The filling pipe 3 penetrates the mounting plate 4 downward and extends to the bottom of the mounting plate 4. The auxiliary frame 6 is set below the mounting plate 4. The auxiliary frame 6 is sleeved on the outside of the filling pipe 3. The sealing sleeve 7 is set between the filling pipe 3 and the auxiliary frame 6 and is respectively connected to the two. The sealing sleeve 7 is made of elastic rubber and is used to seal the gap between the auxiliary frame 6 and the filling pipe 3.

[0040] Reference Figure 2 、 Figure 4 A connecting ring 31 is mounted on the outside of the filling tube 3 for sliding up and down movement. The sealing sleeve 7 is connected to the connecting ring 31 so that the filling tube 3 can move up and down in the connecting ring 31, reducing the phenomenon of the sealing sleeve 7 interfering with the movement of the filling tube 3.

[0041] Reference Figure 3 、 Figure 4 、 Figure 5 The auxiliary frame 6 includes multiple rotatably connected auxiliary plates 61. In this embodiment, four auxiliary plates 61 are arranged on the same horizontal plane. When the auxiliary frame 6 is deployed, the multiple auxiliary plates 61 form a parallelogram structure. The drive assembly 5 is connected to a pair of corners of the auxiliary frame 6 and adjusts the spacing between the corners to drive the auxiliary frame 6 to expand or retract. The ventilation assembly 9 is mounted on the auxiliary plate 61.

[0042] Reference Figure 3 、 Figure 4 、 Figure 5 The auxiliary plate 61 includes a telescopic portion 611 and a connecting portion 612. Two connecting portions 612 are provided, and the two connecting portions 612 are respectively arranged at both ends of the telescopic portion 611. The telescopic portion 611 is configured as a square corrugated plate. That is, the telescopic portion 611 can be extended and retracted to adjust the distance between the two connecting portions 612. The connecting portion 612 rotates with the connecting portion 612 on the adjacent auxiliary plate 61. The adjustment component 8 is connected to the telescopic portion 611.

[0043] In the initial state, the auxiliary frame 6 is in contact with the diagonal contact corresponding to the driving component 5, and the auxiliary frame 6 is in a retracted state. At this time, the interior of the auxiliary frame 6 is in a closed state to allow air to be drawn out of the packaging bag. At this time, the auxiliary frame 6 is in a long strip shape, and at the same time, the adjustment component 8 drives the telescopic part 611 to contract, and the auxiliary plate 61 is shortened.

[0044] The auxiliary frame 6 can be in two states: retracted and extended. In the retracted state, one pair of corners of the auxiliary frame 6 approaches and abuts each other, forming a long strip. In the extended state, the two corners of the auxiliary frame 6 move away from each other until the angles between each pair of adjacent auxiliary plates 61 are the same. At this point, the lower end of the filling tube 3 can pass through the auxiliary frame 6 and move into the packaging bag.

[0045] When the auxiliary frame 6 is in the retracted state, the auxiliary plate 61 also has two states. One is when the telescopic portion 611 is retracted, the auxiliary plate 61 is in the retracted state, in which the auxiliary plate 61 is shortened to its shortest length. The other is when the telescopic portion 611 is extended, the auxiliary plate 61 is in the extended state, in which the auxiliary plate 61 gradually extends to its longest length. Therefore, in these two states of the auxiliary plate 61, although the retracted auxiliary frame 6 is in a long strip shape, the lengths are different. When the auxiliary plate 61 is retracted, it facilitates the placement of the packaging bag outside the auxiliary frame 6. When the auxiliary plate 61 is extended, it fits snugly inside the packaging bag.

[0046] The packaging bag is placed on the outside of the auxiliary frame 6 through the bag feeding component 11, and then the adjustment component 8 drives the telescopic part 611 to extend, that is, drives the auxiliary plate 61 to extend until the outer side of the auxiliary plate 61 abuts against the inner side of the packaging bag, and then the packaging bag is ventilated through the ventilation component 9. After the ventilation is completed, the driving component 5 drives the diagonal spacing of the auxiliary frame 6 to increase, and the auxiliary frame 6 is unfolded. The filling tube 3 moves downward through the auxiliary frame 6 and extends into the packaging bag for filling.

[0047] The auxiliary plate 61 is provided with a rubber layer on both its inner and outer sides. When the auxiliary frame 6 is retracted, the inner rubber layers of the auxiliary plate 61 abut against each other, improving the seal of the auxiliary frame 6 when it is closed, facilitating subsequent ventilation. When the auxiliary plate 61 is extended, the outer rubber layer of the auxiliary plate 61 abuts against the inside of the packaging bag, further improving the seal between the auxiliary plate 61 and the packaging bag, also facilitating subsequent ventilation.

[0048] Reference Figure 4 、 Figure 5 、 Figure 6 The ventilation assembly 9 includes an exhaust pipe 91 and a vent pipe 92, each of which is connected to an air pump. The exhaust pipe 91 and the vent pipe 92 are both mounted on the auxiliary plate 61, extending through the auxiliary plate 61 to the bottom of the auxiliary plate 61. After the auxiliary plate 61 is extended to secure the packaging bag, the exhaust pipe 91 and the vent pipe 92 are both connected to the interior of the packaging bag.

[0049] After the packaging bag is fixed, the original gas in the packaging bag is extracted through the exhaust pipe 91, and then nitrogen or other inert gas is filled into the packaging bag through the ventilation pipe 92 to prop up the packaging bag so that the filling tube 3 can be inserted into the packaging bag after the auxiliary frame 6 is unfolded.

[0050] Reference Figure 5The two diagonal corners of the auxiliary frame 6 are respectively an adjustment position 613 and a sliding position 614. That is, the line connecting the two adjustment positions 613 is perpendicular to the line connecting the two sliding positions 614. The drive assembly 5 is connected to the adjustment position 613. The sliding position 614 is provided with a slider 615. The slider 615 is slidably assembled on the mounting plate 4 and is arranged in a sliding direction toward the filling tube 3. When the auxiliary plate 61 extends, the slider 615 slides on the mounting plate 4 accordingly.

[0051] Reference Figure 3 、 Figure 4 Two sets of drive assemblies 5 are provided, and the two sets of drive assemblies 5 correspond to the two adjustment positions 613 of the auxiliary frame 6. The drive assemblies 5 include a drive member 51 and a connecting plate 52. The drive member 51 is mounted on the mounting plate 4 and is configured as a cylinder. The connecting plate 52 is located at the output end of the drive member 51 and is connected to the adjustment positions 613 of the auxiliary frame 6. The drive member 51 drives the connecting plate 52 to move, which in turn drives the auxiliary frame 6 to expand or retract.

[0052] Reference Figure 6 The adjustment component 8 includes: an adjustment tube 81 and an elastic member 82. The elastic member 82 is arranged in the telescopic part 611, and the elastic member 82 is respectively connected to the connecting parts 612 at both ends of the telescopic part 611. The elastic member 82 is set as an elastic telescopic rod. The elastic member 82 is used to drive the two connecting parts 612 to move toward each other. The adjustment tube 81 is set on the connecting part 612. One end of the adjustment tube 81 is connected to the air pump, and the other end extends into the telescopic part 611.

[0053] In the initial state, the elastic member 82 drives the telescopic portion 611 to contract. When the packaging bag needs to be fixed, air is inflated into the telescopic portion 611 through the adjusting tube 81. Under the action of positive pressure, the telescopic portion 611 drives the two connecting portions 612 to move and move away from each other, so that the auxiliary plate 61 grows.

[0054] Reference Figure 2 、 Figure 4 A heat sealing assembly 41 is mounted on the mounting plate 4. Two sets of heat sealing assemblies 41 are arranged around the filling tube 3. These assemblies 41 include a pusher 411 (acting as a cylinder) and a heat sealing plate 412 (located at the output end of the pusher 411). The heat sealing plates 412 within the two sets of heat sealing assemblies 41 are arranged parallel to each other and are positioned below the auxiliary frame 6.

[0055] After filling is completed, the driving member 51 drives the auxiliary frame 6 to be retracted through the connecting plate 52, and then the pushing member 411 drives the heat sealing plate 412 to approach the packaging bag, so that the heat sealing plate 412 clamps the packaging bag to perform heat sealing packaging on the packaging bag.

[0056] Reference Figure 2 、 Figure 7The bag feeding assembly 11 is arranged below the auxiliary frame 6. The bag feeding assembly 11 is provided with two groups. The bag feeding assembly 11 includes: a second pushing piece 111, a connecting plate 112, and a suction nozzle 113. The second pushing piece 111 is arranged as a cylinder. The output end of the second pushing piece 111 is connected to the connecting plate 112. The connecting plates 112 on the two groups of bag feeding assemblies 11 are arranged in parallel and spaced apart. The suction nozzle 113 is arranged on the connecting plate 112, and the suction nozzle 113 is located between the two connecting plates 112.

[0057] The upper end of the packaging bag is placed between the two connecting plates 112, and then the suction nozzle 113 sucks the side of the packaging bag, and the second pusher 111 drives the two connecting plates 112 away from each other to open the opening of the packaging bag.

[0058] A plurality of suction nozzles 113 are provided along the length direction of the connecting plate 112 , and the stability of the packaging bag when it is opened is improved by the plurality of suction nozzles 113 .

[0059] Reference Figure 2 、 Figure 7 A third pusher 12 is provided below the second pusher 111. The third pusher 12 is configured as a cylinder. The output end of the third pusher 12 is connected to the second pusher 111. The third pusher 12 is used to drive the second pusher 111 to move up and down. After the packaging bag is opened, the third pusher 12 drives the packaging bag to move upward and place the packaging bag outside the auxiliary frame 6.

[0060] Reference Figure 2 、 Figure 7 A slide plate 13 is provided below the push piece 3 12, and the slide plate 13 is slidably assembled on the frame 1, and the slide plate 13 slides left and right on the frame 1. After the packaging bag is placed between the connecting plates 112, the slide plate 13 slides to the bottom of the auxiliary frame 6 for subsequent operations.

[0061] The implementation principle of the present invention is: in the initial state, the auxiliary plate 61 is folded into a long strip, and the telescopic part 611 is in a contracted state; the suction nozzle 113 absorbs the packaging bag, and at the same time, the push piece 2 111 opens the opening of the packaging bag through the connecting plate 112. After the slide plate 13 moves to the bottom of the auxiliary frame 6, the push piece 3 12 drives the packaging bag to move upward and is placed on the outside of the auxiliary frame 6.

[0062] Air is ventilated into the telescopic portion 611 through the regulating tube 81. The positive pressure causes the telescopic portion 611 to expand, simultaneously extending the auxiliary plate 61. The extended auxiliary plate 61 contacts the inside of the packaging bag until the rubber layer on the outside of the auxiliary plate 61 contacts the inside of the packaging bag. The exhaust pipe 91 then extracts the air from the packaging bag, and inert gas is introduced into the packaging bag through the vent pipe 92.

[0063] Then the driving member 51 drives the connecting plate 52 to move, and after driving the auxiliary frame 6 to expand, the filling tube 3 moves downward into the packaging bag to fill the metal powder. After the filling is completed, the driving member 51 drives the auxiliary frame 6 to retract, and then the packaging bag is heat-sealed by the heat-sealing plate 412.

[0064] By setting up the auxiliary frame 6, when the auxiliary frame 6 is folded, the packaging bag is propped up by adjusting the length of the auxiliary plate 61. At the same time, the auxiliary frame 6 is in the folded state, and the space inside the packaging bag is isolated from the outside world. Then, ventilation is performed through the exhaust pipe 91 and the ventilation pipe 92, and the gas inside the packaging bag is extracted and then introduced into the inert gas to improve the efficiency of gas replacement inside the packaging bag, reduce the oxidation of metal powder due to contact with the outside air during packaging, and improve packaging efficiency.

[0065] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A metal powder packaging device, comprising a material tank and a filling pipe located at the bottom of the material tank, characterized in that: A mounting plate is provided at the bottom of the material tank, and a driving assembly and an auxiliary frame are provided below the mounting plate; a sealing sleeve connecting the auxiliary frame and the filling pipe is provided between the auxiliary frame and the filling pipe, and the auxiliary frame includes a plurality of auxiliary plates rotatably connected to each other, and the driving assembly is connected to the auxiliary frame to control the folding and unfolding of the auxiliary frame, and the auxiliary plate includes a telescopic portion for adjusting its length, and an adjusting assembly and a ventilation assembly are provided on the auxiliary plate, and the adjusting assembly is connected to the telescopic portion to control the extension and contraction of the auxiliary plate, and the ventilation assembly includes an exhaust pipe and a vent pipe connected to the inside of the packaging bag; the packaging bag is put on the folded auxiliary Outside the frame, the adjustment component controls the extension of the auxiliary plate so that the outer side of the auxiliary frame is tightly attached to the inside of the packaging bag to fix the packaging bag. After the exhaust pipe extracts the air in the packaging bag, the ventilation pipe introduces inert gas into the packaging bag. Then the driving component controls the expansion of the auxiliary frame, and finally the filling tube is used for filling. The two diagonal corners of the auxiliary frame are the adjustment position and the sliding position respectively. The driving component includes a driving member and a connecting plate provided at the output end of the driving member. The connecting plate is connected to the adjustment position of the auxiliary frame. The sliding position of the auxiliary frame is provided with a slider, which slides on the mounting plate in a direction perpendicular to the filling tube. The auxiliary plate includes connecting parts provided at both ends of the telescopic portion, and the auxiliary plate is rotatably connected to the adjacent auxiliary plate through the connecting parts. The adjustment assembly includes an adjustment tube and an elastic member. The elastic member is provided in the telescopic portion and connected to the connecting parts at both ends of the telescopic portion to drive the telescopic portion to retract. The adjustment tube is provided on the connecting part, one end of the adjustment tube is connected to the air pump, and the other end passes through the connecting part and communicates with the interior of the telescopic portion. When the adjustment tube is inflated, the telescopic portion is expanded under the action of positive pressure. The outer portion of the filling tube is slidably mounted with a connecting ring, and the sealing sleeve is connected to the connecting ring.

2. The metal powder packaging equipment according to claim 1, characterized in that: Rubber layers are provided on both the inner and outer sides of the auxiliary plate. When the auxiliary frame is in the retracted state, the rubber layers on the inner sides of the auxiliary plates abut against each other to close the interior of the auxiliary frame. When the auxiliary plates are extended, the rubber layers on the outer sides abut against the inner side of the packaging bag.

3. The metal powder packaging equipment according to claim 1, characterized in that: A heat sealing assembly is provided on the mounting plate. Two groups of heat sealing assemblies are provided around the filling tube. The heat sealing assembly includes a pusher 1 and a heat sealing plate. The heat sealing plate is provided at the output end of the pusher 1. The two groups of heat sealing plates are provided in parallel and spaced apart. The heat sealing plates are provided below the auxiliary frame for heat sealing the packaging bags.

4. The metal powder packaging equipment according to claim 1, characterized in that: A bag feeding assembly is provided below the auxiliary frame. There are two groups of bag feeding assemblies. The bag feeding assembly includes a pusher 2, a connecting plate, and a suction nozzle. The output end of the pusher 2 is connected to the connecting plate. The connecting plates in the two groups of bag feeding assemblies are arranged parallel to each other. The suction nozzle is arranged on the connecting plate and is located between the two connecting plates.

5. The metal powder packaging equipment according to claim 4, characterized in that: A plurality of suction nozzles are arranged at intervals along the length direction of the connecting plate.

6. The metal powder packaging equipment according to claim 4, characterized in that: A pusher 3 is provided below the pusher 2, and the output end of the pusher 3 is connected to the pusher 2 to drive the pusher 2 to move up and down. The pusher 2 moves upward and drives the open end of the packaging bag to be sleeved outside the auxiliary frame through the suction nozzle.

7. The metal powder packaging equipment according to claim 6, characterized in that: A slide plate is provided below the push member 3, and the slide plate is slid left and right and assembled below the auxiliary frame to transport the packaging bag to the auxiliary frame.

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